Shadowed Unit Frames (and Aura Indicators/Tracker)
 

SUF and the Aura Indicators module have been updated for MoP, they should be feature complete with the new class changes in MoP.

They can be found on wowace under alpha releases, they'll get synced onto WoWI when MoP gets closer to release.

http://www.wowace.com/addons/shadowed-unit-frames/
http://www.wowace.com/addons/shadoweduf-grid/

Thank you! Just downloaded both, will test them today. Since no other unit frames mod appears to have been updated for MoP yet, this is an awesome alternative to being stuck with the default (and wholly inferior) party/raid frames.